公开(公告)号：EP3472119A1

公开(公告)日：2019-04-24

申请号：EP16736658.2

申请日：2016-06-22

申请人： United States Gypsum Company

发明人： SANG, Yijun ,  LI, Alfred, C. ,  SONG, Weixin, D.

IPC分类号： C04B28/14

公开(公告)号：EP3057919A1

公开(公告)日：2016-08-24

申请号：EP14789726.8

申请日：2014-10-14

申请人： United States Gypsum Company

发明人： CAO, Bangji ,  SONG, Weixin, D. ,  CHAN, Cesar

IPC分类号： C04B28/14 ,  C04B111/00 ,  C04B111/28 ,  C04B111/30

CPC分类号： E04B1/942 ,  C04B28/14 ,  C04B2111/00068 ,  C04B2111/0062 ,  C04B2111/28 ,  C04B2111/30 ,  C04B2201/20 ,  E04C2/043 ,  Y02W30/92 ,  Y02W30/94 ,  Y02W30/97 ,  Y10T428/31971 ,  C04B7/02 ,  C04B14/10 ,  C04B14/202 ,  C04B18/08 ,  C04B18/146 ,  C04B18/24 ,  C04B24/226 ,  C04B24/2641 ,  C04B24/38 ,  C04B2103/32 ,  C04B2103/408

摘要： A gypsum composition, board, and method of producing a gypsum board with increased fire endurance are described. The set gypsum-containing composition can be used to prepare a gypsum board having fire endurance, based on particular water-to-stucco ratios.

公开(公告)号：EP1893375A2

公开(公告)日：2008-03-05

申请号：EP06784612.1

申请日：2006-06-07

申请人： UNITED STATES GYPSUM COMPANY

发明人： YU, Qiang ,  LYNN, Michael, R. ,  SONG, Weixin, D. ,  LIU, Qingxia ,  SHAKE, Michael, P. ,  JONES, Frederick, T.

IPC分类号： B23B13/00

CPC分类号： C04B28/14 ,  C04B2111/0062 ,  Y02W30/97 ,  C04B22/16 ,  C04B24/226 ,  C04B14/42 ,  C04B18/241 ,  C04B2103/408

摘要： The invention generally provides gypsum-containing slurries including stucco, trimetaphosphate salt, and naphthalenesulfonate dispersant, wherein the trimetaphosphate salt is present in an amount of at least about 0.12% by weight based on the weight of stucco. Other slurry additives can include accelerators, binders, starch, and paper fiber, glass fiber, and other known ingredients. The invention also comprises the gypsum-containing products made with such slurries, for example, gypsum wallboard, and a method of making gypsum wallboard.

公开(公告)号：EP1893374A2

公开(公告)日：2008-03-05

申请号：EP06772613.3

申请日：2006-06-08

申请人： UNITED STATES GYPSUM COMPANY

发明人： YU, Qiang ,  SONG, Weixin, D. ,  LYNN, Michael, R.

IPC分类号： B23B13/00

CPC分类号： C04B11/00 ,  C04B22/16 ,  C04B24/226 ,  C04B24/383 ,  C04B28/14 ,  C04B2103/0045 ,  C04B2103/408 ,  C04B2111/0062 ,  Y02W30/97 ,  Y10T428/249953 ,  Y10T428/2978 ,  Y10T428/31971 ,  Y10T428/31993 ,  Y10T442/665 ,  C04B14/42 ,  C04B18/24

摘要： The invention generally provides gypsum-containing slurries including stucco, naphthalenesulfonate dispersant, and pregelatinized starch. The naphthalenesulfonate dispersant is present in an amount of about 0.1% - 3.0% by weight based on the weight of dry stucco. The pregelatinized starch is present in an amount of at least about 0.5% by weight up to about 10% by weight of pregelatinized starch by weight based on the weight of dry stucco in the formulation. Other slurry additives can include trimetaphosphate salts, accelerators, binders, paper fiber, glass fiber, and other known ingredients. The invention also comprises the gypsum-containing products made with such slurries, for example, gypsum wallboard, and a method of making gypsum wallboard.